Warning3.a: Config Symmetry
Detected 365 configuration drifts across the cluster.
Warning4.c: Delete Not Found
Detected 50,720,801 ‘Delete Not Found’ events across 5 nodes.
Executive Summary
This report provides a health assessment for the Aerospike cluster consisting of 5 nodes. Analysis identified 50,720,801 “Delete Not Found” events, suggesting application-side logic gaps.
NoteTAM Overview
The cluster is stable, but high DNF rates indicate unnecessary IOPS pressure. Reviewing application “blind delete” patterns is the primary recommendation.
Cluster Status Overview
Performance and Utilization
Disk Usage % by Node
Client Connections
Observations and Remediation
3.a: Config Symmetry
Detected 365 configuration drifts across the cluster.
Recommendation: Check the Technical Details section to identify which specific parameters (e.g. memory, timeouts) differ.
4.b: Read Not Found
Detected 4,068 ‘Read Not Found’ events. This is often normal for application cache-miss workflows.
Recommendation: If the application expects all records to exist, investigate potential expiration or eviction issues.
4.c: Delete Not Found
Detected 50,720,801 ‘Delete Not Found’ events across 5 nodes.
Recommendation: This suggests the application is attempting to delete records that do not exist (Blind Deletes). Review application logic.
Appendix: All Tests Performed
| Check Name | Status |
|---|---|
| Hot Key Detection | ✅ PASS |
| Service Error Skew | ✅ PASS |
| SIndex on Flash | ✅ PASS |
| Sprig Limit Warning | ✅ PASS |
| Storage Deadlock Risk | ✅ PASS |
| Config Symmetry | ⚠️ WARNING |
| Read Not Found | ⚠️ INFO |
| Delete Not Found | ⚠️ WARNING |
| Disk HWM Check | ✅ PASS |
| Memory HWM Check | ✅ PASS |
TAM Technical Details
Node Statistics (Sample)
| node_id | metric | value |
|---|---|---|
| 10.94.173.43:3000 | service.heartbeat_received_foreign | 353086422.0 |
| 10.94.173.40:3000 | service.batch_index_timeout | 0.0 |
| 10.94.173.73:3000 | service.reaped_fds | 0.0 |
| 10.94.173.73:3000 | service.fabric_connections_closed | 89.0 |
| 10.94.173.73:3000 | service.batch_index_created_buffers | 108.0 |
| 10.94.173.40:3000 | service.heartbeat_received_foreign | 180678321.0 |
| 10.94.173.73:3000 | service.batch_index_delay | 53782300.0 |
| 10.94.173.40:3000 | service.system_free_mem_kbytes | 90540524.0 |
| 10.94.173.82:3000 | service.cluster_clock_skew_ms | 0.0 |
| 10.94.173.82:3000 | service.fabric_connections | 95.0 |
Aerospike Health Analyzer | Version: 1.2.0 | Generated: 2026-02-06 12:24